Ok, i used pin on disk and the load was 2,5,10 and 20 N.
As for the speed 15,30,60 and 90 cm/sec.
It was dry wear and that is something that happens to most
metals- i mean that since we increase load the surface
gets harder but why does wear ?
Could anyone explain me, why when the friction coefficient
(al 6082 - steel) gets lower with bigger loads the wear
of al 6082 increases ?
Since the surface is hardened why wear increases ?
